JPH04101750U - Wheel step mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate the work of attaching and detaching wheel steps, and to protect hub bolts and nuts from damage, rust, and damage, and to improve their appearance. [Structure] In an automobile wheel fixing structure in which a disc wheel is fixed to the hub with a wheel nut that is screwed onto a hub bolt protruding from the hub, a male thread is machined on the outer periphery of the large diameter contact seat of the wheel nut. Tighten the wheel step to the disc wheel through the cap nut that is threaded onto the disc wheel.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a wheel step mounting structure for automobiles, particularly trucks.

0002

[Conventional technology]

For example, in a truck, as shown in the front view of Figure 4, there is a wheel step on the front wheel of the truck. 01 is fixed, and the crew members put their feet on this wheel step 01 and move the cabin. getting on and off the train. Conventionally, this wheel step 01 is shown in the longitudinal cross-sectional view of FIG. As shown, a hub bolt 04 for fixing the disc wheel 02 to the hub 03 Using the wheel nut 05, tighten it by inserting it into the disc wheel 02. It is being 06 is a tire.

0003

[Problem that the idea aims to solve]

However, such a structure has the following problems. (1) Hub bolts and nuts are exposed to the outside, so if rust occurs, the appearance will deteriorate. Deteriorate. (2) When removing and installing the wheel step, the nut must be removed each time. Otherwise, the disk wheel etc. will come loose in that case, which is troublesome. (3) If the wheel step is damaged, the hub bolt may also be damaged. This invention was proposed in view of these circumstances, and it Makes work easier and protects hub bolts from rusting and damage. The purpose is to provide a wheel step mounting structure.

0004

[Means to solve the problem]

To achieve this, the present invention is designed to screw the disc wheel onto the hub bolt protruding from the hub. In the automobile wheel fixing structure, which is fixed to the same hub with a wheel nut, A cap that screws onto the male thread machined on the outer periphery of the large diameter contact seat of the wheel nut. The feature is that the wheel step is tightened to the same disc wheel via a nut. shall be.

[0005]

[Effect]

According to this configuration, the wheel step is a carrier that is screwed into the wheel nut. The disc wheel is tightened using the top nut. As a result, the hub bolt and the wheel nut that screws into it have a wheel nut lock. Since it is wrapped in yap and is not exposed to the outside, there is no possibility of rust. Become. In addition, the wheel step can be installed and removed simply by removing the cap nut. This can be done easily without having to attach or detach the parts.

[0006]

【Example】

One embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is an overall front view, and Fig. 2 is an overall front view. A vertical sectional view taken along II-II in FIG. 1, and FIG. 3 shows an embodiment of the cap nut in FIG. FIG. In the above figure, the same reference numbers as in Fig. 5 indicate the same members as in the same figure, and the present invention The major difference in structure from the known structure shown in the same figure is the wheel step 01. Then, screw the cap nut into the threaded part carved on the outer periphery of the wheel nut. Therefore, it can be tightened to the disc wheel. That is, in Figures 1 and 2, 1 is a wheel nut, and the disc wheel A screw 2 is machined on the outer periphery of the large-diameter seat that comes into contact with. 3 is a cap nut , has a female thread 4 screwed into the male thread 2 of the wheel nut 1 on the inner periphery of its large diameter opening end. is engraved. 5 is a mounting hole drilled in the wheel step, and its diameter is the same as that of the wheel step. It is made slightly larger than the outer diameter of the male thread 2 of the ear nut 1. In such a structure, first, the disc wheel 02 is screwed onto the hub bolt 04. It is fixed to the disc wheel 02 via a matching wheel nut 1. Next, the wheel step 01 has its mounting hole 5 connected to the male thread 2 of the wheel nut 1. part, and then screw the cap nut 3 onto the male thread 2 of the wheel nut 1. This tightens the wheel step 01 to the disc wheel 02. According to such a wheel step mounting structure, the following effects can be achieved. (1) The wheel step can be easily attached to the hub drum by attaching and detaching only the cap nut. can be attached and detached. Therefore, unlike conventional methods, each time the wheel step is attached or detached, the wheel Eliminates the need to attach and detach the lug nuts. (2) Even if the wheel step is damaged by external force, the hub bolt and The wheel nuts are protected by the cap nuts so they are not damaged. (3) Hub bolts and wheel nuts are completely covered with cap nuts. Since it is no longer exposed to the outside, there is no risk of rusting and the appearance is improved. (4) Both the cap nut and wheel step can be made of plastic. This gives you a greater degree of freedom in selecting colors, shapes, etc., making it possible to improve the appearance. In addition, such a cap nut 3 is used for fixing the disc wheel. In passenger cars, etc., as shown in Figure 3, it is simply screwed onto the wheel nut. Protects exposed parts of wheel nuts and hub bolts to prevent damage and rust. However, it can also be used to improve appearance.

[0007]

[Effect of the idea]

In short, according to the present invention, the disc wheel is attached to the hub bolt protruding from the hub. In the automobile wheel fixation structure, which is fixed to the same hub with a threaded wheel nut. , a gear that screws into the male thread machined on the outer periphery of the large-diameter abutment seat of the above wheel nut. I decided to tighten the wheel step to the same disc wheel via the top nut. It not only makes it easier to attach and detach the wheel step, but also protects the hub bolt. This invention provides a wheel step mounting structure that prevents rust and damage. It is extremely useful for business.

[Brief explanation of drawings]

[0008]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is a partial vertical sectional view taken along II-II in FIG. 1;

FIG. 3 is a longitudinal sectional view showing one embodiment of the cap nut of FIG. 1;

FIG. 4 is an overall front view showing a wheel step of a known truck.

FIG. 5 is a sectional view taken along the line V-V in FIG. 4;

[0009]

[Explanation of symbols]

1 Wheel nut 2 Male thread 3 Cap nut 4 Female thread 5 Mounting hole 01 Wheel step 02 Disc wheel 03 Hub 04 Hub bolt 05 Tire applicant Mitsubishi Motors Corporation agent Patent attorney Tsuka
Original text

Claims (1)

[Scope of utility model registration request] [Claim 1] In an automobile wheel fixing structure in which a disc wheel is fixed to a hub by a wheel nut that is screwed onto a hub bolt protruding from the hub, a disc wheel is machined on the outer periphery of a large diameter abutment seat of the wheel nut. A wheel step mounting structure characterized by tightening the wheel step to the disc wheel via a cap nut that is threaded onto the male thread.